How can I check if a sub form was expanded?

[tazquebec]

Please look at the print screen first

I want to perform an operation went a sub form has been expanded.

I need access to the fields of the sub form on the click even of a button.

Forms![BASE].Controls("subfrmBase").Controls("frmSoumission_CT S").Controls("frmSoumission_CTS_Elements")!drpdwn_ ref_Element.Value

If the sub form was not expanded I get an error.

I want to display a message when that happens.

If the sub form was expanded and then decreased, then I have access to the fields.

In that case I want to be able to check for that.

Basically, I want to know if the user is on a record of the sub form.



Thanks for the help

[llkhoutx]

Your thumbnails are not forms, but table views.

Display those tales in form and subform datasheet views. Then on the on event reference the approprate field.

[tazquebec]

When the form is first open the sub form "frmSoumission_CTS_Elements" of the Subform frmSoumission_CTS is not expand. There are not controls defined.

When the sub form "frmSoumission_CTS_Elements" is expand by pressing the plus sign. The controls are then defined.

I have access to the fields of the sub form I want to reach.

Forms![BASE].Controls("subfrmBase").Controls("frmSoumission_CT S").Controls("frmSoumission_CTS_Elements")!ref_SCT S

If the sub form of the fields I need access to is shrink, I still have access to them. Which, I also need to know.

So what I need is to know if the user is now pointing to a record of my sub form "frmSoumission_CTS_Elements".


Thanks

[llkhoutx]

Forms![BASE].Controls("subfrmBase").Controls("frmSoumission_CT   S").Controls("frmSoumission_CTS_Elements")!ref_SCT  S 

is nonsence and incorrect syntax. I can't tell what you are trying to reference.

A form must be populated before populating a subform. If your form is populated and your subform does not expand, the subform has no data or the subform's record source is incorrect. Moving to a new record on a subform will always generate a record, but it may be an orphan if the form & subform are not properly related.

[tazquebec]

Forms![BASE].Controls("subfrmBase").Controls("frmSoumission_CT S").Controls("frmSoumission_CTS_Elements")!ref_SCT S

When I put the line above in a message box I get a value when the sub form was expand a first time. If the sub form as not been expand before I get a error message.

With the debugger I can see that I can not have access to controls is the sub form was not expanded.

Hope these precision help

Thanks for you help

[llkhoutx]

THe Access expression builder would build a subfoirm reference as

Forms!FormName.SubformName.Form.SubformControlName 

a subsubform reference as

Forms!FormName!sbformName.Form!SubsubformName.Form!SubsubFormControlName 

Do the tables the subject of the form, ther subform and subsubform have relationships viewable in the Relationships window?

Are the LinkChildFields and LinkMasterFields properties of your subform and subsubform properly set?

[tazquebec]

I am using Access 2003 ans my database are on SQL Server 2005.

That probably I do not see where I can get the relationships window.

Under witch menu should I find that?

Yes my LinkChildFields and LinkMasterFields properties of my subform and subsubform properly set.

The following code work when the subsubform as been expand. It does not work if not.

Forms![BASE].Controls("subfrmBase").Controls("frmSoumission_CTS").Controls("frmSoumission_CTS_Elements")!ref_SCTS

I think what I need to test is:

• Do I have access to the control of the subsubform
• Is the subsubform expanded

Thanks

[llkhoutx]

subsubform expanded 

are not words of art in Access, that it, it has no meaning.

A subsubform is a "subform" of a subform.

I presume what you are saying that for some subform record, a subsubform record is not being displayed. That means that there is not a subsubform record related to the displayed subform record or that the subsubform is not properly bound (to its record source).

Subsubforms should not be populated before its parent subform is populayed. Similarily, subforms should no the populated before its parent form is populated.

Stately genericaly, you have a parent, child and grandchild. You can't have a granchild without a child and cannot have a parent.

An orphan is a subform or subsubform that does not have an immediately preceding ancestor.

Do I have access to the control of the subsubform 

You will have access to a control on a subform if the subform recordsource has a related parent but only if you have a correct subform recordsorce.

Is the subsubform expanded 

If it has a related form record.

Do you forms display the navigation buttons, or is there only one record for the subform and one for the subsubform? If so, you should always be able to add a new record.